TZ3 U6 Vocabulary Crossword

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Across
  1. 3. risk
  2. 5. die under water
  3. 9. a large flat area of ice floating on the surface of the sea
  4. 11. ecosystem issue
  5. 13. how hot or cold s.t., usually the weather, is
  6. 16. rare
  7. 17. enlarge
  8. 18. pollution
  9. 20. how high or low the sea is
Down
  1. 1. died out
  2. 2. desert
  3. 4. the Arctic
  4. 6. opposite of decrease
  5. 7. reduce
  6. 8. effect
  7. 10. crack
  8. 12. rise
  9. 14. can’t see anymore, gone forever
  10. 15. change from ice to water
  11. 19. the remains